Calculating Student Average Using For Next
Oct 12, 2011
The idea of this program is to calculate and find total and average for 3 Students automatically. That is when the first data is entered and click on button the total and average of first student should be displayed in listbox. And we should be able to enter second data. Bu the problem is it is just printing the first average and total thrice.
Dim a As String
Dim tot, avg, N As Single
Dim I As Integer
For I = 1 To 3
tot = Val(TextBox2.Text) + Val(TextBox3.Text) + Val(TextBox4.Text) + Val(TextBox5.Text) + Val(TextBox6.Text)
[Code] .....
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Apr 19, 2010
I have created a class called Student, with five private variables: [code] My main form is divided into a number of different sub procedures. In one of them, I used a streamreader to take the first name, last name, and phone numbers of a list of records in a text file called PersonalInfo.txt. It seems to work just fine. [code] I have another, separate sub procedure in which I read a different text file containing the "averages" for the students. The first average from Averages.txt belongs with the first student in PersonalInfo.txt. The second average goes with the second student.. How do I add the student average information to the properties of the student records created in the previous sub procedure? [code] I realize why this wouldn't work, but I can't figure out how I could use my counter to reference a specific student.
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Sep 8, 2009
I'm working on a function to return a exponential average and there are a lot of examples of exponential moving averages but they all start with a moving average that is just the mean as a lead in to calculating the continuing moving average. I needed just a exponential average of a value set. After Googling my Bing off I still haven't seen anything so here is my attempt at a basic exponential average. Is this correct? Are there any errors? I have seen some text about adding a smoothing value to change the curve of the exponential average but not how that would be implemented.
[Code]...
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Mar 26, 2012
I put comments on the average output since I kept getting error messages about that. My out keeps saying:
Maximum value: 33
Minimum value: 33
what am I doing wrong?
Option Explicit On
Option Strict On
[Code]...
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Feb 8, 2009
here is my problem. i have to enter two grades, each grade should be an integer between 0 and 100 inclusive. Calculate the average of the two grades. If the average is greater than or equal to 90, display "Grade is an A!". It goes down the line for "if average is _______, display " ______is a/n __!" I get the last part and I know how to figure an average...but i am not sure how to type it in code. He did an elseif example, but it wasn't with 2 numbers and didn't have to average anything. So I don't know how to write that code....is there anywhere to look to find it? Here is what I have so far.............
Module Module1
Sub Main()
Dim grade, sum, average As Double
[code].....
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Jun 21, 2010
Using VB.NET write a program that can calculate the grade of a student based on his or her marks in five subjects as input according to the following rules:
Grade A: For average between 100 and 80 (inclusive)
Grade B: For average between 79 and 65 (inclusive)
Grade C: For average between 64 and 40 (inclusive)
[code].....
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Apr 10, 2012
need to make sure I got everything right for my Calculate Button in displaying the Total and Average.
Option Explicit On
Option Strict On
Public Class Grades
[code]....
My problem is mostly in the Calculate Button, what is CStr? I already used that because I set my Explicit On and that suggested it. Also when I debug I enter my 3 grades and click calculate, 0 is displayed in both my Total and Average Label box.For the Average, how would I display it to 2 decimal places?How would I set a parameter for the exam scores to be between 0-100?Would it be Try/Catch? And where would I place that coding?How do I convert my textboxes to integers?
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Dec 10, 2009
Im having a problem getting my calculations to work. I need to find the average letters per word.
Private Sub btnCount_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCount.Click
'Determine word count and average letters / word in the sentence
[Code].....
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Jun 28, 2011
I'm having a problem creating a function for calculating an average. I need to divide the sum of a column of integers by the number of rows in that column. These integers are generated by a datediff command and their values are assigned to textboxes in a report. The results can only be whole numbers, no decimal points.
I'm pretty new to this so if this is an obvious question please excuse my ignorance. If you need any more information to address my question please let me know.
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Feb 25, 2012
I am making this for a homework assignment and i need to calculate the average for values entered in textbox1 and place them in other textboxes. I dont understand how to do this with numbers all placed in the same spot. here is my code thus far:
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
End Sub
[Code].....
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Apr 1, 2011
I'm doing an assignment for class which is basically a simple program that takes 12 monthly temperatures and averages them. But I also need to round the average to the nearest tenth. I am not particularly good at programming or math and don't know how I would fit this into my code. I am Including My program thus far. I put in bold and italic where the calculation takes place.
Private Sub btnEmterTemperature_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEmterTemperature.Click
'FOR BUTTON CLICK EVENT "ENTER TEMPERATURE"
[Code].....
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Nov 6, 2010
OK, so I've been given an assignment due for Monday, which was to create a console program which allows the user to enter an unknown quantity of numbers, then have the Mean, Median and Mode averages displayed of said group of numbers.
So far I've managed to get the Mean and Median to work, for both odd and even quantities of variables. I am however stuck on getting it to calculate the modal average! I don't really know how to approach this, would a structure with two fields, variable and quantity of variable, work?
Below is the code, I haven't made it display discrete of continuous data yet, I'm leaving that for the end.
Module Module1
Sub Main()
Start:
'Declare Variables
[Code].....
I imagine this is quite elementary for most of you, I unfortunately received no replies what-so-ever to my last thread...
PS: Why isn't there an option for UK in the two letter country codes?
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Jun 17, 2009
I'm trying to calculate the rolling average in a crystal report. I have got 4 weeks in a month, and I have calculated the average for each week so long. Now I want to calculate a rolling average. eg:
For week1: rolling average = (week1Average)/1
For week2: rolling average = (week1Average + week2Average)/2
For week3: rolling average = (week1Average + week2Average + week3Average)/3
etc.
The problem with the code below is that, it is not looping through,therefore the rolling average for each week is the same as its average value wich is not correct.
Dim i, weekNum as number
Dim tot as double
weekNum =Distinctcount({ItemRating.WeekNo})
[Code].....
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May 14, 2012
I wrote the following generic LINQ extension for calculating weighted average in Visual Basic 2010:
<Extension()>
Function WeightedAverage(Of T)(ByVal source As IEnumerable(Of T),
ByVal selectorValue As Func(Of T, Integer),
ByVal selectorWeight As Func(Of T, Integer)) As Double
Dim weightedValueSum As Double
Dim weightSum As Integer
[Code] .....
How can I call this function as an Aggregate function of another LINQ query? I tried it in the following way:
Dim q1 = From jd In oContext.JobDatas
Where jd.Year = 2011
Select jd
Dim q2 = Aggregate num In q1 Into WeightedAverage(num.AvSalary, num.NumPosHolder)
The Visual Basic 2010 editor is telling me that the second query (q2) of the following code is not valid statement. On the comma between the first an second argument it's saying: ")" required.
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Mar 6, 2012
randomly select a single student out of the student array based on their subscript number. This will be accomplished by the following:
[Code]...
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Jun 15, 2010
I want to include an average in a column where the average ignores zero values in a report cell where the column may have
17
19
0
[code].....
I want 16, not 11 so (17 + 19 + 12 + 13 + 19) / 5 not (17 + 19 + 0 + 0 + 12 + 13 + 19) / 7 Something like this if it would work.
=SUM(Fields!fieldname.Value) / Count(iif(Fields!count_cycle_per_hour.Value >= 0,Fields!fieldname.Value,0))
Essentially just average everything in the column NOT a zero?
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May 10, 2011
I'm in a computer science class, and we are writing simple programs using Visual Basic 2008. I am really inept when it comes to this, as I have never done it before. I need to write a program that: "Asks the user for 5 numbers and computes the average. It then displays the average with an appropriate message before the average."
I have been really close with this, but I can't get the numbers to add up, then divide by 5, and display a pop up message.
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Mar 16, 2009
My objective is to add a student's name to a combo box, in proper mixed-case, no matter how the user enters the name.
When any of the following examples are entered:
jones, carl
SMITH, IDA
bLACK, dEVIN
Johnson, Eric
[Code].....
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May 14, 2010
I created a simple Class called Student.[code]And then I tried to create an array of Students called s. I'd like to do something simple with the names of one of the students like the following..[code]I know that I need to use the New keyword to create an instance for each s(), but I'm not sure where to put it. When I try it without the array it's easy.
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Jan 5, 2010
i have to add a student to my listbox but with many informations for example i have many textboxs (textbox for the age of the student, textbox for the name of the student & ECT) how can i had one student with all these infromation(age, name, major) in the load form also when i click on the student in listbox it shows age in the textbox1, name in textbox2 & ECT add student with multiple information in listbox [form load], and when i click on the student in the listbox it shows the students infromation on each textbox like textbox1 age, textbox2 name it's all with visual basic language.
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Jan 5, 2012
Ok I have a search Button that will search through a student table and produce the grades of all the stdents in a class room when I enter the class room number into a textbox(txtclass.Text). The results will be displayed in a DataGridView and also I have the average grade of the class displayed in another textbox(marks.Text).
My program runs fine but I would like to add more code so that If I enter a wrong classrom number into the search textbox and Search for it then I would like a messagebox to pop up and say that the classrom you have entered does not exist. .I have tried different if statements but none has worked for me so far.
[Code]...
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Oct 29, 2011
I'm reviewing a midterm visual basic exam question that I got didn't code correctly and I cannot figure out what I'm doing wrong.
The problem is:"Figure 7.4 contains an array of survey responses that is hard-coded (1-5) into the program. Suppose we wish to process survey results that are stored in a file. First, create an application that enables the user to write survey responses to a file. Use StreamWriter to create a file called SurveyResponses.txt and write each response on a separate line. Modify the code in fig. 7.4 to read the survey responses from SurveyResponses.txt by using StreamReader. THe program should continue to read responses until it reaches the end of file. The results should be output to a text box."
Note:the output of figure 7.4 is as follows and the frequency is incremented when a user submits a response.
Rating Frequency
1
2
3
4
5
My issue is that I use StreamReader and StreamWriter to allow the user to select a location to save the file and to open the file. I believe VB must automatically create a file and automatically open it, which I cannot figure out how to do it.
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Dec 29, 2011
how to generate student number in visual basic 2008 in this format. the year+date+in what number that the student is enrolled. example: 111201. where the year will change depend on the year that the student enrolled for the first time.
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May 19, 2012
i am working on an examination system. the system has to compute the grades and position of each student per stream and per class.each class has got 4 streams. I save the studentsmarks in the database. i want the system to determine the positions of students and the position of each student to appear on the rtf.. report, for example:
Position in stream:4
Position in Class: 21
[code].....
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Jan 12, 2010
I'm trying to do a rigistration system using vb 2008..the system must have database in access must have search button to searh student name then whenever i click a student name it will automatically fill their name in a form...
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Jun 8, 2009
SELECT COUNT(StudentId) FROM firstterm where class='Nursery'
SELECT percentage, StudentId FROM firstterm WHERE class= 'Nursery' ORDER BY percentage DESC
this shows result like this[code]...
now in the form i put the 2 text box and and the buttoni take the number 10003 and click the buttonnow in the another text box i need to show that what is the position of the id number 100003 from the above figer it is in the third position
how can i make it through the click button so the the result comes on the front
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Jul 14, 2011
am looking to develop a simple program which inputs a students details and prints to the output,
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Aug 11, 2009
Currently on an internship from my CS degree, we have some down time and I'd like to spend it working through a series of problems (although none too large) that would advance my programming skills and allow me to dip my toes in a large breadth of different topics and areas. Unfortunately, everything I do must be done in vb.net on .net 2.0, without downloading any particular libraries.I've already worked through many of the "code-golf" tagged problems on here and the programming praxis problems posed by dailywtf.
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Dec 4, 2010
I want to save student detailed in MS SQL SERVER database like names class..... But I have a form such that user can enter one student detailes and then press save. But I want now to allow to have like a spread shit (excel) and then enter all student detailes and when he press save all data are saved like data in name column go to the appropriate one in database>
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Mar 20, 2012
im currently designing a student application form in my VS2008 Project.Theres a lot of information that the end user needs to insert for eg, Applicants Info, Parenta Info, Medical history etc What i want is some advice on how i can design this? At the moment i have too many textboxes and comboboxes for the information that needs to be provided and im losing space on the application form. Do i split the form into different parts using tabs, ie tab for student, tab for parent etc or is there a better way?
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